<template>
  <div class="tabs-box">
    <div class="tabs-menu">
      <el-tabs
        v-model="tabsMenuValue"
        type="card"
        @tab-click="tabClick"
        @contextmenu="openMenu($event)"
        @tab-remove="tabRemove"
        @dblclick.prevent="tabDoubleClick"
      >
        <el-tab-pane v-for="item in tabsMenuList" :key="item.path" :label="item.title" :name="item.path" :closable="item.close">
          <template #label>
            <el-icon v-if="item.icon && tabsIcon" class="tabs-icon">
              <component :is="item.icon"></component>
            </el-icon>
            {{ item.title }}
          </template>
        </el-tab-pane>
      </el-tabs>
      <div class="right-tag">
        <Refresh />
        <Maximize />
        <MoreButton class="tabs_icon" />
      </div>
    </div>
    <Contextmenu :visible="visible" :left="left" :top="top" />
  </div>
</template>

<script setup lang="ts">
import Sortable from "sortablejs";
import { ref, computed, watch, onMounted } from "vue";
import { useRoute, useRouter } from "vue-router";
import { useGlobalStore } from "@/stores/modules/global";
import { useTabsStore } from "@/stores/modules/tabs";
import { useAuthStore } from "@/stores/modules/auth";
import { useKeepAliveStore } from "@/stores/modules/keepAlive";
import { TabsPaneContext, TabPaneName } from "element-plus";
import MoreButton from "./components/MoreButton.vue";
import Refresh from "./components/Refresh.vue";
import Maximize from "./components/Maximize.vue";
import Contextmenu from "./components/Contextmenu.vue";

const route = useRoute();
const router = useRouter();
const tabStore = useTabsStore();
const authStore = useAuthStore();
const globalStore = useGlobalStore();
const keepAliveStore = useKeepAliveStore();

const tabsMenuValue = ref(route.fullPath);
const tabsMenuList = computed(() => tabStore.tabsMenuList);
const tabsIcon = computed(() => globalStore.tabsIcon);

const visible = ref(false);
const top = ref(0);
const left = ref(0);
// 右击打开页签操作
const openMenu = (e: MouseEvent) => {
  e.preventDefault();
  const { clientX, clientY } = e;
  left.value = clientX;
  top.value = clientY + 5;
  if (tabsMenuList.value.length < 2) {
    visible.value = false;
  } else {
    visible.value = true;
  }
};

const closeMenu = () => {
  visible.value = false;
};
watch(visible, value => {
  if (value) {
    document.body.addEventListener("click", closeMenu);
  } else {
    document.body.removeEventListener("click", closeMenu);
  }
});

onMounted(() => {
  tabsDrop();
  initTabs();
});

// 监听路由的变化（防止浏览器后退/前进不变化 tabsMenuValue）
watch(
  () => route.fullPath,
  () => {
    if (route.meta.isFull) return;
    tabsMenuValue.value = route.fullPath;
    const tabsParams = {
      icon: route.meta.icon as string,
      title: route.meta.title as string,
      path: route.fullPath,
      name: route.name as string,
      close: !route.meta.isAffix,
      isKeepAlive: route.meta.isKeepAlive as boolean
    };
    tabStore.addTabs(tabsParams);
    // route.meta.isKeepAlive && keepAliveStore.addKeepAliveName(route.name as string);
  },
  { immediate: true }
);

// tabs 拖拽排序
const tabsDrop = () => {
  Sortable.create(document.querySelector(".el-tabs__nav") as HTMLElement, {
    draggable: ".el-tabs__item",
    animation: 300,
    onEnd({ newIndex, oldIndex }) {
      const tabsList = [...tabStore.tabsMenuList];
      const currRow = tabsList.splice(oldIndex as number, 1)[0];
      tabsList.splice(newIndex as number, 0, currRow);
      tabStore.setTabs(tabsList);
    }
  });
};

// 初始化需要固定的 tabs方法
const initTabs = () => {
  authStore.flatMenuListGet.forEach(item => {
    if (item.meta.isAffix && !item.meta.isHide && !item.meta.isFull) {
      const tabsParams = {
        icon: item.meta.icon,
        title: item.meta.title,
        path: item.path,
        name: item.name,
        close: !item.meta.isAffix,
        isKeepAlive: item.meta.isKeepAlive
      };
      tabStore.addTabs(tabsParams);
    }
  });
};

// let clickTimer: any = null;
// // Tab Click
// const tabClick = (tabItem: TabsPaneContext) => {
//   if (clickTimer === null) {
//     clickTimer = setTimeout(() => {
//       clickTimer = null;
//       const fullPath = tabItem.props.name as string;
//       router.push(fullPath);
//     }, 300);
//   } else {
//     clearTimeout(clickTimer);
//     clickTimer = null;
//   }
// };

// Tab Click
const tabClick = (tabItem: TabsPaneContext) => {
  const fullPath = tabItem.props.name as string;
  router.push(fullPath);
};

// Tab dbClick 双击刷新
const tabDoubleClick = () => {
  refresh();
};

// refresh current page
const refreshCurrentPage: Function = inject("refresh") as Function;
const refresh = () => {
  setTimeout(() => {
    keepAliveStore.removeKeepAliveName(route.name as string);
    refreshCurrentPage(false);
    nextTick(() => {
      keepAliveStore.addKeepAliveName(route.name as string);
      refreshCurrentPage(true);
    });
  }, 0);
};

// Remove Tab
const tabRemove = (fullPath: TabPaneName) => {
  // const name = tabStore.tabsMenuList.filter(item => item.path == fullPath)[0].name || "";
  // keepAliveStore.removeKeepAliveName(name);
  tabStore.removeTabs(fullPath as string, fullPath == route.fullPath);
};
</script>

<style scoped lang="scss">
@import "./index.scss";
</style>
